I can't believe that nobody has pointed this out yet... so I'm going to go ahead.
That chart is comparing the i7 (Intel's current/new gen) to the 9950 (NOT EVEN B.E.!!) which is AMD's last-gen.
Next time, please link a chart that is at least graphing two parts put out in the same generation (Nehalem vs Deneb).
I mean, the Deneb is on a different manufacturing process (45-deneb versus 65-phenom). Different socket (AM3-deneb AM2+with phenom). Etc.